1. Division of Pathology, National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan
2. Pathogenetic Veterinary Science, United Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, Gifu501-1193, Japan
3. Department of Pharmacology, School of Pharmacy, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
4. Faculty of Life and Environmental Sciences, Kyoto Prefectural University, 1-5 Shimogamohangi-cho, Sakyo-ku, Kyoto 606-8522, Japan
5. Kyoto Prefectural Agriculture, Forestry & Fisheries Technology Center, 9 Wakunari, Amarube, Kameoka, Kyoto 621-0806, Japan
6. Department of Food Science, Korea Christian University, Kkachisan-ro 24-gil, Gangseo-gu 47, Seoul 07661, Republic of Korea
7. Department of Food Science and Biotechnology, Kagoshima University, 1-21-24 Korimoto, Kagoshima, Kagoshima 890-0065, Japan
8. Biological Safety Research Center, National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan